Navigation Links
UF study shows carnivore species shrank during global warming event
Date:8/24/2010

GAINESVILLE, Fla. A new University of Florida study indicates extinct carnivorous mammals shrank in size during a global warming event that occurred 55 million years ago.

The study, scheduled to appear in the December print edition of the Journal of Mammalian Evolution and now available online, describes a new species that evolved to half the size of its ancestors during this period of global warming.

The hyena-like animal, Palaeonictis wingi, evolved from the size of a bear to the size of a coyote during a 200,000-year period when Earth's average temperature increased about 15 degrees Fahrenheit. Following this global warming event, Earth's temperature cooled and the animal evolved to a larger size.

"We know that plant-eating mammals got smaller during the earliest Eocene when global warming occurred, possibly associated with elevated levels of carbon dioxide," said lead author Stephen Chester, a Yale University doctoral student who began the research at UF with Jonathan Bloch, curator of vertebrate paleontology at the Florida Museum of Natural History. "Surprisingly, this study shows that the same thing happened in some carnivores, suggesting that other factors may have played a critical role in their evolution."

Researchers discovered a nearly complete jaw from the animal in Wyoming's Big Horn Basin in 2006 during a fossil-collecting expedition, led by Bloch, a co-author on the study. Bloch said the new findings could help scientists better understand the impact of current global warming.

"Documenting the impact of global climate change in the past is one of the only real experiments that can inform us about what the effects global warming might have on mammals in the near future," said Bloch, who has studied this climate change event for nearly a decade.

Scientists think the Earth experienced increased levels of carbon dioxide and a drier environment during the warmer time period, but
'/>"/>

Contact: Jon Bloch
jbloch@flmnh.ufl.edu
352-273-1938
University of Florida
Source:Eurekalert

Page: 1 2

Related biology news :

1. UCLA study identifies genetic variation linked to lupus in Asian men
2. Study offers historic buildings protection from climate change
3. CEAP study examines nitrogen, copper levels in Bay watershed
4. CCNY biologists study rainforest host-plant associations
5. Study explains why Alzheimers drug is both safe and effective
6. Study shows genes role in developing and maintaining cells key for a lifetime of memories
7. Grant to study effects of oil and dispersants on Louisiana salt marsh ecosystem
8. Blood stem cell, leukemia link illuminated in UCSF-led study
9. Landmark dental school study uses genetic test to help predict gum disease
10. Illinois researchers use pyrosequencing to study canine intestinal bacteria
11. Study to examine rising sea levels impact on estuaries, coastal communities
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:4/24/2014)... A common plant puts out a welcome mat to bacteria ... mix. , The study published this week in the ... targets during the battle between microbe and host that researchers ... the humble and oft-studied plant Arabidopsis puts out ... It,s as if a hostile army were unknowingly passing by ...
(Date:4/23/2014)... German . Man ... difference between sexes depends on one single element of the genome: ... two sexual chromosomes are X and Y, whereas women have two ... morphological and physiological differences between males and females. , But this ... the X and Y were identical, until the Y started to ...
(Date:4/23/2014)... research shows that male black widow spiders prefer their ... example of mate preference by male spiders. ... and Maydianne Andrade, a professor in UTSC,s Department of ... the wild that males overwhelmingly chose to mate with ... can tell whether a potential mate is well-fed and ...
Breaking Biology News(10 mins):How a plant beckons the bacteria that will do it harm 2How a plant beckons the bacteria that will do it harm 3Male or female? 2Male or female? 3Picky male black widow spiders prefer well-fed virgins 2
... mutations in cancer patients to predict clinical outcome has ... decades, but now researchers at the Kimmel Cancer Center ... links cancer cell metabolism with poor clinical outcome. This ... of human cancer cell. The researchers demonstrate ...
... and demand for it is increasing all the time but ... more secure, thanks to research at The University of Nottingham,s ... the vanilla bean, the ,fruit, of the flowering vanilla orchid. ... ancient Central American civilisations such as the Aztecs and is ...
... is available in German . , Insects ... of odor molecules in the air are sufficient to be ... receptor proteins, expressed in these neurons recognize the odors. The ... electrical signals that are processed in the insect brain and ...
Cached Biology News:Jefferson researchers unlock key to personalized cancer medicine using tumor metabolism 2Jefferson researchers unlock key to personalized cancer medicine using tumor metabolism 3Preserving a world favorite flavour 2Molecular messages from the antennae 2
(Date:1/15/2014)... Arizona (PRWEB) January 15, 2014 2013 ... for Scottsdale’s Brain State Technologies®. They saw continued independent ... Medical Center who were awarded a $1 million grant ... published in “Brain and Behavior” a peer reviewed journal, ...
(Date:1/14/2014)... 14, 2014 Carahsoft and CDS Federal ... 23, 2014 at 2pm EST (11am PST), “Natural Language ... focuses on how technology can turn raw, heterogeneous data ... government agencies. The online webinar will last approximately one ...
(Date:1/14/2014)... 2014 The largest international professional organization of ... therapeutic derivatives thereof has endorsed an educational program ... the challenges of adulterated herb and botanical products. ... The Society for Medicinal Plant and Natural ...
(Date:1/14/2014)... 14, 2014 Global Record Systems, ... information technology solutions for patients, physicians, the biopharmaceutical ... announced today the signing of a three-year Research ... Drug Administration (FDA). This initiative is designed ...
Breaking Biology Technology:Dynamic Innovative Technology Showcased at Scottsdale Company’s Open House 2Dynamic Innovative Technology Showcased at Scottsdale Company’s Open House 3Webcast - Natural Language Processing: Converting Raw Data into Actionable Knowledge – Hosted by Carahsoft and CDS Federal Services 2World's Largest Group of Medicinal Plant Researchers Endorses ABC-AHP-NCNPR Botanical Adulterants Program 2World's Largest Group of Medicinal Plant Researchers Endorses ABC-AHP-NCNPR Botanical Adulterants Program 3World's Largest Group of Medicinal Plant Researchers Endorses ABC-AHP-NCNPR Botanical Adulterants Program 4World's Largest Group of Medicinal Plant Researchers Endorses ABC-AHP-NCNPR Botanical Adulterants Program 5World's Largest Group of Medicinal Plant Researchers Endorses ABC-AHP-NCNPR Botanical Adulterants Program 6World's Largest Group of Medicinal Plant Researchers Endorses ABC-AHP-NCNPR Botanical Adulterants Program 7World's Largest Group of Medicinal Plant Researchers Endorses ABC-AHP-NCNPR Botanical Adulterants Program 8Global Record Systems Announces Research Collaboration Agreement with FDA to Create a Novel “Big Data” Paradigm for Collection of Patient Safety and Outcomes Information 2
... vision affects 3.3 million Americans age 40 and over, ... to reach 5.5 million by the year 2020, according ... of Ophthalmology . , ,Because of an aging population, ... diseases responsible for blindness such as age-related macular degeneration, ...
... in ePrairie reviewed the top 100 most wired hospitals in ... the top 100. While this is a sign of progress ... hospitals is U.S. News & World Report annual ... some very interesting results, and I have tried to cull ...
... seeking increased connectivity with their healthcare providers hope that ... and make services easier to access. Although the streamlining ... evolving piecemeal, a group of Wisconsin hospitals appears to ... ,The group, organized under Aurora Health Care , ...
Cached Biology Technology:Medical College given funds for eye research 2Midwest shines among best hospitals in U.S. 2Midwest shines among best hospitals in U.S. 3Midwest shines among best hospitals in U.S. 4Midwest shines among best hospitals in U.S. 5Midwest shines among best hospitals in U.S. 6Midwest shines among best hospitals in U.S. 7Midwest shines among best hospitals in U.S. 8Aurora ranks among most wired systems 2
... SUPERaseIn RNase Inhibitor (patent pending) is a ... noncovalently binds and inhibits the most common ... C, 1 and T1. SUPERaseIn can be ... could be problematic. It is ideal for ...
... RNaseOUT Recombinant Ribonuclease Inhibitor ... of pancreatic-type ribonucleases such as ... inhibitors RNaseOUT Recombinant Ribonuclease Inhibitor ... a molecular weight ~52 kDa. ...
...
... Core Kit contains all the ... assays on a wide range ... to dNTPs, the Core Kit ... used BIOLASE DNA polymerase, which ...
Biology Products: